Mobility

SHIELD: A Strategy-Proof and Highly Efficient Channel Auction Mechanism for Multi-Radio Wireless Networks

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Executive Summary

Due to users' fast-growing demands, wireless spectrum is becoming a more and more scarce resource. However, the state of spectrum usage shows that while large chunks of spectrum are left idle at many places, many emerging wireless applications cannot get enough spectrum to provide their services. In contrast to existing truthful mechanisms for channel redistribution, which achieve strategy-proofness at the price of lowered system performance, the authors propose SHIELD, which not only guarantees strategy-proofness in the process of channel redistribution, but also achieves high system performance. Their evaluation results show that SHIELD outperforms the existing mechanisms, in terms of spectrum utilization and user satisfaction ratio.

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